POST method is not working with Request header

Question

I want to send data to youtube by POST method. I write http.open("POST", myUrl, true); in the code as following

var myUrl = "https://gdata.youtube.com/action/GetUploadToken";
 http.open("POST", myUrl, true);
            http.setRequestHeader("Authorization", "AuthSub token=" + code);
            http.setRequestHeader("GData-Version", 2);
            http.setRequestHeader("X-GData-Key", "key="+dev_key);
            http.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");

but the error is

Request URL:https://gdata.youtube.com/action/GetUploadToken
Request Method:OPTIONS
Status Code:405 Method Not Allowed

Kindly tell me what is the wrong here

Answer 1

AJAX doesn't allow you to send request to domains other than that which hosts the code?